Checking device



FIG. 1 is a left side elevational view of a checking device showing my new design;

FIG. 2 is right side elevational view showing the design for the checking device of FIG. 1;

FIG. 3 is a rear elevational view showing the design for the checking device of FIG. 1;

FIG. 4 is a front elevational view showing the design for the checking device of FIG. 1; and,

FIG. 5 is a top elevational view showing the design for the checking device of FIG. 1.

The broken lines shown in the drawings are included for the purpose of illustrating unclaimed portions of the checking device and form no part of the claimed design. 

CLAIM The ornamental design for a checking device, as shown and described. 